The most affordable CRM system according to Capterra
Enterprise telephony recording and retrieval system
Multi user address book application accessable through the web.
H.323 Gatekeeper for VoIP and videconferencing
Cress is a comprehensive toolset for graphical service/workflow design
Java VoIP/SIP PBX system (replaced by jfPBX)
JAvascript Voicexml InterpretER
Go to github.com/vlm/asn1c for the latest version.
Optimized and cross platform SMPTE 2022 FEC library in C, Python, Java
Web interface for OpenSIPS